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第 5 期 夏晓阳 等：改性生物炭特征及其对盐碱化土壤改良的研究进展 19

ship between soil salts and microbial communities［J/OL］.Eco⁃ 291-306.
toxicology and environmental safety，2022，239：113616 ［49］ 李佳，曹先梅，刘立云，等 . 镁对槟榔幼苗光合特性和叶绿体
［2023-02-06］.http：//doi.org/10.1016/j.ecoenv.2022.113616. 超微结构的影响［J］. 植物营养与肥料学报，2019，25（11）：
［47］ ZHANG M Y，XIA H，RIAZ M，et al.Various beneficial mi⁃ 1949-1956.LI J，CAO X M，LI L Y，et al.Effects of different
croorganisms colonizing on the surface of biochar primarily magnesium nutrition levels on photosynthetic characteristics
originated from the storage environment rather than soil envi⁃ and chloroplast ultrastructure of areca palm seedlings［J］.Jour⁃
ronment［J/OL］. Applied soil ecology，2023，182：104700 nal of plant nutrition and fertilizers，2019，25（11）：1949-1956
［2023-02-06］.http：//doi.org/10.1016/j.apsoil.2022.104700. （in Chinese with English abstract）.
［48］ RAHMAN A，HOSSAIN M S，MAHMUD J A.Manganese- ［50］ GHASSEMI-GOLEZANI K，FARHANGI-ABRIZ S，AB⁃
induced salt stress tolerance in rice seedlings：regulation of ion DOLI S.How can biochar-based metal oxide nanocomposites
homeostasis，antioxidant defense and glyoxalase systems［J］. counter salt toxicity in plants？［J］ Environmental geochemistry
Physiology and molecular biology of plants，2016，22（3）： and health，2021，43（5）：2007-2023.

Characteristics of modified biochar and its application
in improving saline-alkali soil

1
1
1
1,2
1
XIA Xiaoyang ,WANG Xiangling ,XIA Hao ,LI Yuxuan ,WANG Jiyuan ,JIANG Cuncang 1,2
1.College of Resources and Environment/Microelement Research Center，
Huazhong Agricultural University，Wuhan 430070，China；
2.College of Agronomy，Shihezi University/ Xinjiang Production and Construction
Corps Key Laboratory of Oasis Eco-Agriculture，Shihezi 832003，China

Abstract Soil salinization seriously restricts the sustainable development of agriculture，but the appli⁃
cation of modified biochar has a significant effect on the improvement of saline-alkali soil.In order to explore
the mechanism of modified biochar improving saline-alkali soil.This article summarizes the effects of differ⁃
ent modification methods on the physical and chemical properties of pristine biochar，as well as the improve⁃
ment effect and influencing factors of modified biochar on saline-alkali soil.The results showed that the mod⁃
ified biochar had the characteristics of large specific surface area，many types and quantities of oxygen-con⁃
taining functional groups，and a decrease in the proportion of alkaline substances.It can promote the forma⁃
tion of aggregate structure in saline-alkali soil，increase the adsorption of salt ions and nutrient retention，
change the functional structure of soil microorganisms，and strengthen the ability of crops to cope with exter⁃
nal stress.However，there were few studies on the long-term effects of modified biochar and the differences
of its application in different types of saline-alkali soil.In the future，field verification tests of different types
of saline-alkali soil should be carried out to explore the adsorption capacity and long-term effect of modified
biochar on different salt ions，in order to optimize its improvement methods under different saline-alkali
types.
Keywords biochar；modifying methods；saline-alkali soil；soil improvement

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